Hi, my parents have an older film rebel, and they are about to replace it with a pocket sized digi-cam. I am about to upgrade from my Canon S3 IS, to a Rebel XTI, or an EOS 30D (haven't decided yet). I was curious, if it would be a good idea to just use the kit lens from the film rebel, and buy a cheap telephoto lens for my airshow stuff. I am thinking, if that lens is good, why not use the 100-something$ to go towards my telephoto lens?! Thanks for any help!